DIURNAL PATTERNS OF RESPIRATION IN THE LEAVES OF 4 FOREST TREE SPECIES

被引：8

作者：

COLLIER, DE ^{[1
]}

CUMMINS, WR ^{[1
]}

VILLAR, R ^{[1
]}

机构：

[1] FAC BIOL SEVILLE,DEPT ECOL,E-4180 SEVILLE,SPAIN

来源：

PHYSIOLOGIA PLANTARUM | 1992年 / 84卷 / 03期

关键词：

ACER; ALTERNATIVE PATHWAY; BETULA; CYTOCHROME PATHWAY; POPULUS; QUERCUS; RESPIRATION;

D O I：

10.1111/j.1399-3054.1992.tb04676.x

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Respiration along the cyanide-sensitive, cytochrome pathway and the cyanide-insensitive, alternative pathway was monitored over a 24-h period in the leaves of Acer rubrum, Betula papyrifera, Populus tremuloides and Quercus rubra excised in the field. Populus displayed the greatest rate of total respiration, followed by Betula, Quercus and Acer. All species displayed the capacity for the alternative pathway as well as some engagement of the pathway, although the level of engagement in Acer was very low. In all species investigated there were no marked diurnal trends in any respiration variable measured. Leaf soluble sugar levels remained at a relatively constant level throughout the sampling period. It is concluded that respiration did not show diurnal fluctuations because substrate supply in the leaf was maintained at a constant level.

引用

页码：361 / 366

页数：6

共 24 条

[1] EFFECT OF PHOTOSYNTHESIS AND CARBOHYDRATE STATUS ON RESPIRATORY RATES AND THE INVOLVEMENT OF THE ALTERNATIVE PATHWAY IN LEAF RESPIRATION [J].